#!/usr/bin/env python

def hello(): 
    print "Hello, world!" 


def add(a, b):
    print "a + b", a + b
    return (a + b, a - b)

def sub(a, b):
    return a - b;


if __name__ == "__main__":
    for i in range(1, 10000):
        hello()
        add(1, 2)
        sub(1, 10)

